public class Example8_23 {
    public static void main(String args[]) {
        RedEnvelope redEnvelope = new RandomRedEnvelope(5.20,6);
        System.out.printf("以下用循环输出%d个人抢%.2f圆的随机红包:\n",
                redEnvelope.remainPeople,redEnvelope.remainMoney);
        showProcess(redEnvelope);
    }
    public static void showProcess (RedEnvelope redEnvelope) {
        double sum = 0;
        while(redEnvelope.remainPeople>0){
            double money = redEnvelope.giveMoney();
            System.out.printf("%.2f\t",money);
            sum = sum+money;
        }
        String s = String.format("%.2f",sum);   //金额保留2位小数
        sum = Double.parseDouble(s);
        System.out.printf("\n%.2f圆的红包被抢完",sum);
    }
}